build.py 文件源码

def print_usage():
    script_name = os.path.basename(__file__)
    configs = []
    for name, args in sorted(CONFIGS.items()):
        if name == DEFAULT_CONFIG_NAME:
            name += " (default)"
        if name == DEBUG_CONFIG_NAME:
            name += " (default with --debug)"
        configs.append(name + "\n    " + " ".join(args))
    configs_string = "\n  ".join(configs)
    cmake_name = os.path.basename(CMAKE)
    make_name = os.path.basename(MAKE)
    generator_name = CMAKE_GENERATOR.lower()
    default_config_name = DEFAULT_CONFIG_NAME
    debug_config_name = DEBUG_CONFIG_NAME
    print("""Usage: {script_name} [BUILD [BUILD ...]] [--all] [--debug] [MAKE_OPTIONS]

Build one or more predefined build configurations of Fast Downward. Each build
uses {cmake_name} to generate {generator_name} and then uses {make_name} to compile the
code. Build configurations differ in the parameters they pass to {cmake_name}.

Build configurations
  {configs_string}

--all         Alias to build all build configurations.
--debug       Alias to build the default debug build configuration.
--help        Print this message and exit.

Make options
  All other parameters are forwarded to {make_name}.

Example usage:
  ./{script_name} -j4                 # build {default_config_name} in 4 threads
  ./{script_name} -j4 downward        # as above, but only build the planner
  ./{script_name} debug32 -j4         # build debug32 in 4 threads
  ./{script_name} --debug -j4         # build {debug_config_name} in 4 threads
  ./{script_name} release64 debug64   # build both 64-bit build configs
  ./{script_name} --all VERBOSE=true  # build all build configs with detailed logs
""".format(**locals()))